Electrochemical co-deposition of phosphonate-modified carbon nanotubes and tantalum on Nitinol

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Abstract

Nitinol substrates are coated with thin surface films made of carbon nanotubes (CNTs) and tantalum (Ta), with the aim of fostering their osseointegration aptitudes. Exceptional mechanical and chemical characteristics of CNTs combined with the resistance to corrosion and strong bioactive properties of tantalum allow for the generation of adherent, protective and functional layers on metallic biomaterial platforms. The composite coatings are elaborated on Nitinol through a two-step electrochemical protocol; firstly, through the electrophoretic deposition of phosphonate-modified CNTs and, secondly, with electrodeposition of Ta. As a preliminary step, phosphonate groups, acting, in addition, as specific Ta-capture entities, are introduced on the CNT sidewalls by means of diazonium derivatives, which imply no hard oxidative treatment. X-ray photoelectron spectroscopy as well as scanning and transmission electronic microscopies are used to analyse the chemical composition, structure and morphology of the different layers.
Original languageEnglish
Pages (from-to)896-902
JournalChemElectroChem
Volume1
Issue number5
DOIs
Publication statusPublished - 2014

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Tantalum
Organophosphonates
Carbon Nanotubes
Carbon nanotubes
Composite coatings
Biocompatible Materials
Biomaterials
Electrodeposition
Microscopic examination
X ray photoelectron spectroscopy
Corrosion
Derivatives
Scanning
nitinol
Substrates
Chemical analysis

Cite this

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title = "Electrochemical co-deposition of phosphonate-modified carbon nanotubes and tantalum on Nitinol",
abstract = "Nitinol substrates are coated with thin surface films made of carbon nanotubes (CNTs) and tantalum (Ta), with the aim of fostering their osseointegration aptitudes. Exceptional mechanical and chemical characteristics of CNTs combined with the resistance to corrosion and strong bioactive properties of tantalum allow for the generation of adherent, protective and functional layers on metallic biomaterial platforms. The composite coatings are elaborated on Nitinol through a two-step electrochemical protocol; firstly, through the electrophoretic deposition of phosphonate-modified CNTs and, secondly, with electrodeposition of Ta. As a preliminary step, phosphonate groups, acting, in addition, as specific Ta-capture entities, are introduced on the CNT sidewalls by means of diazonium derivatives, which imply no hard oxidative treatment. X-ray photoelectron spectroscopy as well as scanning and transmission electronic microscopies are used to analyse the chemical composition, structure and morphology of the different layers.",
author = "Anthony Maho and Simon Detriche and Gr{\'e}gory Fonder and Joseph Delhalle and Zineb Mekhalif",
year = "2014",
doi = "10.1002/celc.201300197",
language = "English",
volume = "1",
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journal = "ChemElectroChem",
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publisher = "John Wiley and Sons Ltd",
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TY - JOUR

T1 - Electrochemical co-deposition of phosphonate-modified carbon nanotubes and tantalum on Nitinol

AU - Maho, Anthony

AU - Detriche, Simon

AU - Fonder, Grégory

AU - Delhalle, Joseph

AU - Mekhalif, Zineb

PY - 2014

Y1 - 2014

N2 - Nitinol substrates are coated with thin surface films made of carbon nanotubes (CNTs) and tantalum (Ta), with the aim of fostering their osseointegration aptitudes. Exceptional mechanical and chemical characteristics of CNTs combined with the resistance to corrosion and strong bioactive properties of tantalum allow for the generation of adherent, protective and functional layers on metallic biomaterial platforms. The composite coatings are elaborated on Nitinol through a two-step electrochemical protocol; firstly, through the electrophoretic deposition of phosphonate-modified CNTs and, secondly, with electrodeposition of Ta. As a preliminary step, phosphonate groups, acting, in addition, as specific Ta-capture entities, are introduced on the CNT sidewalls by means of diazonium derivatives, which imply no hard oxidative treatment. X-ray photoelectron spectroscopy as well as scanning and transmission electronic microscopies are used to analyse the chemical composition, structure and morphology of the different layers.

AB - Nitinol substrates are coated with thin surface films made of carbon nanotubes (CNTs) and tantalum (Ta), with the aim of fostering their osseointegration aptitudes. Exceptional mechanical and chemical characteristics of CNTs combined with the resistance to corrosion and strong bioactive properties of tantalum allow for the generation of adherent, protective and functional layers on metallic biomaterial platforms. The composite coatings are elaborated on Nitinol through a two-step electrochemical protocol; firstly, through the electrophoretic deposition of phosphonate-modified CNTs and, secondly, with electrodeposition of Ta. As a preliminary step, phosphonate groups, acting, in addition, as specific Ta-capture entities, are introduced on the CNT sidewalls by means of diazonium derivatives, which imply no hard oxidative treatment. X-ray photoelectron spectroscopy as well as scanning and transmission electronic microscopies are used to analyse the chemical composition, structure and morphology of the different layers.

U2 - 10.1002/celc.201300197

DO - 10.1002/celc.201300197

M3 - Article

VL - 1

SP - 896

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JO - ChemElectroChem

JF - ChemElectroChem

SN - 2196-0216

IS - 5

ER -